On 04/04/18 17:00, M A Young wrote:
> On Wed, 4 Apr 2018, Ajay Garg wrote:
> 
>> Thanks Michael for the reply.
>>
>> I want to give this patch a try, as the symptoms look identical.
>> However, I see no xen-head.S when I clone the repo from
>> git://xenbits.xen.org/xen.git
>>
>> What am I missing?
> 
> The patch is for the xen code in the kernel. It was accepted in the kernel 
> upstream (in 4.15.5 and probably backported to other maintained kernels) 
> so you probably just need a kernel less than a month old, but as has 
> already been said, the kernel may not be the problem.

And the symptoms are completely different (well, at least for me).

Ajay's crash is due to an illegal instruction, so probably a BUG().

The patch above fixes an early page fault in the kernel.


Juergen

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